Revision Information

This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.

The Division of Sexually Transmitted Diseases provides national leadership, research, policy development, and scientific information to help people live safer, healthier lives by the prevention of STDs and their complications.

Many diseases of national and international interest have stimulated private organizations dedicated to a single or a few conditions. Trachoma, a chlamydial disease, is an international problem of major proportions, particularly in the developing nations. The organization provides information to the public and mobilizes resources.

The Office on Women's Health (through the Department of Health and Human Services) provides national leadership and coordination to improve the health of women and girls through policy, education and model programs.

The National Institute of Allergy and Infectious Diseases (NIAID) conducts and supports basic and applied research to better understand, treat, and ultimately prevent infectious, immunologic, and allergic diseases.